Overseer
Western Thunderer
'Industrial Railways of Southern England in Colour' has a photo of a pair of internal user wooden vans in the same blue circle livery that are far whiter than the iron mink model, and photos of the other internal user stock which is covered in white lime/cement/chalk. Mainline stock delivering cement probably wouldn't get so covered in white dust and probably would have more normal dirt and rusty water over the running gear.As the masters of modelling chide us relentlessly, don’t do what you think, follow photos of the real thing. Anyone got any?